CVE-2005-3891: Gadu-Gadu Instant Messenger

High severity, CVSS 7.8. EPSS: 2.3% chance of exploitation in the next 30 days.

Stack-based buffer overflow in Gadu-Gadu 7.20 allows remote attackers to cause a denial of service (crash) via an image filename between exactly 192 to 200 characters, which does not account for the "imgcache\" string that is added to the end of the buffer.

Affected products

• Gadu-Gadu Gadu-Gadu Instant Messenger: version 7.20 only

Published 2005-11-29. Last modified 2026-06-16.